So, if I send an email (subject "test") from a remote email site (ameritech) to [email protected], [email protected] gets a surprise. His email box becomes instantly flooded with mailsize message, and a few "test" emails. Unless I issue a command to stop postfix, this email looping for "naughty" would probably go until the box runs out of diskspace.

So, my question is, how do I properly use an always_bcc command to forward emails to another user on the same box and not run into an email forwarding loop.

What the client has asked for is to copy all outgoing and incoming emails to a particular account. The instructions above, I'm assuming, are for incoming emails only.

If it were incoming emails only, we would be all set. But, the trouble is that we need to bcc all outgoing emails too. As much as I have tried, it seems that I can't stop the email forwarding from happening by using an always_bcc to another local account. There must be something I'm missing.

I did what you asked, and it worked great. Then, I was able to uncomment the /root/ispconfig/isp/conf/procmail.master's mailsize entry, and only comment the "naughty" user's .procmailrc file. Rebooted (I dont know what command to issue for changes to the mailsize entries), and it worked great.